Adam has some money to buy some stickers.
If he buys 4 stickers, he will need $3 more.
If he buys 8 stickers, he will need $7 more.
- How much does each sticker cost?
- How much money does he have?
(a)
Difference in the number of stickers in both scenarios
= 8 - 4
= 4
Difference in the amount to pay in both scenarios
= 7 - 3
= $4
Adam needs $4 to buy 4 extra stickers.
Cost of 4 stickers = $4
Cost of 1 sticker = 4 ÷ 4 = $1
(b)
Amount that he has
= Cost of 4 stickers - 3
= 4 x 1 - 3
= 4 - 3
= $1
Answer(s): (a) $1; (b) $1